Ravelia, Jewel of Tapoban

Blue creatures you control have shroud.
White creatures you control have lifelink.
Whenever another creature you control would be sent to the graveyard, you may discard a card to return that creature to your hand instead.

"As Y'vela guided the First Ones through Hem
El-Kuthra, Ravelia will guide us to victory. Of that, there is no doubt."- Kephir